Adapter boards

Our adapter boards make it easy to fit digital decoders to your locomotives, thanks to the standardised interface! We offer boards for 21 MTC/MKL and PluX 22 decoders. They’re suitable for decoders from many manufacturers, such as ESU, Uhlenbrock, Lenz, D&H, and more.

Almost all decoder functions can be used via the interface, without needing to solder anything on the decoder itself. This makes it much easier to swap or modify the decoder later on. 

A lot of attention was paid to keeping the adapter boards small. That’s why our adapter boards have neither series resistors for connecting LEDs nor an amplifier circuit. 

Series resistors for connecting LEDs are available in our Shop range.

Most manufacturers offer decoders with amplified switching outputs (AUX). Details can be found in the decoder manufacturer’s instructions.

The dimensions of the 21MTC board without decoder (W×L×H) are 13×15×6mm.

The dimensions of the PluX 22 board without decoder (W×L×H) are 17×16×2.6mm.

Please refer to the relevant instructions for installation details and exact pad designations.